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some progress towards test 2

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bronku 2025-11-22 00:31:00 +01:00
parent 9c493f543a
commit 87695ebb20
5 changed files with 52 additions and 10 deletions
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15
src/lexer.l
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@ -8,15 +8,24 @@
%}
%%
[0-9]+ { yylval->as<std::string>() = yytext; return yy::parser::token::TOK_NUMBER; }
[_a-zA-Z]+ { yylval->as<std::string>() = yytext; return yy::parser::token::TOK_IDENTIFIER; }
def { return yy::parser::token::TOK_KW_DEF;}
if { return yy::parser::token::TOK_KW_IF;}
return { return yy::parser::token::TOK_KW_RETURN;}
for { return yy::parser::token::TOK_KW_FOR;}
in { return yy::parser::token::TOK_KW_IF;}
\n { return yy::parser::token::TOK_NEWLINE; }
\( { return yy::parser::token::TOK_L_PAREN; }
\) { return yy::parser::token::TOK_R_PAREN; }
\: { return yy::parser::token::TOK_COLON; }
\= { return yy::parser::token::TOK_EQUALS; }
\+ { return yy::parser::token::TOK_PLUS; }
\- { return yy::parser::token::TOK_MINUS; }
\" { yymore(); BEGIN(STRING); }
[0-9]+ { yylval->as<std::string>() = yytext; return yy::parser::token::TOK_NUMBER; }
[_a-zA-Z]+ { yylval->as<std::string>() = yytext; return yy::parser::token::TOK_IDENTIFIER; }
. { /* the last rule, ignore anything else (there should be nothing) */}
<STRING>\"\" { yymore(); }
<STRING>\" { BEGIN(INITIAL); yylval->as<std::string>() = yytext; return yy::parser::token::TOK_STRING; }
<STRING>. { yymore(); }
. { /* the last rule, ignore anything else (there should be nothing) */}
%%